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US 12,571,315 B2Granted
Blade with damper land
AssigneeRtx Corporation
InventorRobert A. White, III
Life of this patent
Estimating the term…
Abstract
A gas turbine engine blade includes a platform; an airfoil section extending from the platform in a first direction; a mount extending from the platform in a second direction opposite the first direction; a damper land on the platform, the damper land having a relatively smoother outward-facing surface than the platform; and a damper interfacing with the outward-facing surface of the damper land. A method of making a gas turbine engine blade is also disclosed.
Claims17
A gas turbine engine blade, comprising:
- a platform;
- an airfoil section extending from the platform in a first direction;
- a mount extending from the platform in a second direction opposite the first direction;
- a damper land fixed on the platform, the damper land having a relatively smoother outward-facing surface than the platform;
- a damper interfacing with the outward-facing surface of the damper land;
- wherein the blade is one of a ceramic matrix composite blade or a monolithic ceramic blade;
- and
- the damper land extending beyond an inner surface of the platform, and in the second direction.
5 more elements
A method of making a gas turbine engine blade, comprising:
- applying a damper land to a platform of the gas turbine engine blade, the gas turbine engine blade including an airfoil section extending from the platform in a first direction and a mount extending from an inner surface of the platform in a second direction opposite the first direction, and the damper land extending beyond the inner surface of the platform in the second direction wherein an outwardly-facing surface of the damper land is configured to interface with a damper;
- where the applying step is by one of air plasma spraying, slurry infiltration, and melt infiltration;
- further comprising machining the outwardly-facing surface of the damper land after the applying;
- and
- wherein the gas turbine engine blade is formed of one of a ceramic matrix composite or a monolithic ceramic, with the machining step resulting in the damper land having a relatively smoother outwardly-facing surface than the platform.
2 more elements
Dependencies are inferred from the claim text.